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Zou JX, Chua W, Ser Z, Wang SM, Chiang GSH, Sanmugam K, Tan BY, Sobota RM, Li H. Detection of Bacterial Neutral Ceramidase in Diabetic Foot Ulcers with an Optimized Substrate and Chemoenzymatic Probes. Angew Chem Int Ed Engl 2023; 62:e202307553. [PMID: 37340712 DOI: 10.1002/anie.202307553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/22/2023]
Abstract
Ceramidases (CDases) are important in controlling skin barrier integrity by regulating ceramide composition and affording downstream signal molecules. While the functions of epidermal CDases are known, roles of neutral CDases secreted by skin-residing microbes are undefined. Here, we developed a one-step fluorogenic substrate, S-B, for specific detection of bacterial CDase activity and inhibitor screening. We identified a non-hydrolyzable substrate mimic, C6, as the best hit. Based on C6, we designed a photoaffinity probe, JX-1, which efficiently detects bacterial CDases. Using JX-1, we identified endogenous low-abundance PaCDase in a P. aeruginosa monoculture and in a mixed skin bacteria culture. Harnessing both S-B and JX-1, we found that CDase activity positively correlates with the relative abundance of P. aeruginosa and is negatively associated with wound area reduction in clinical diabetic foot ulcer patient samples. Overall, our study demonstrates that bacterial CDases are important regulators of skin ceramides and potentially play a role in wound healing.
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Affiliation(s)
- Jiao Xia Zou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Wisely Chua
- Molecular Engineering Lab, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Zheng Ser
- Functional Proteomics Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Shi Mei Wang
- Functional Proteomics Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | | | | | | | - Radoslaw M Sobota
- Functional Proteomics Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Hao Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Molecular Engineering Lab, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
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Abstract
OBJECTIVE This work addressing complexities in wound infection, seeks to test the reliance of bacterial pathogen Pseudomonas aeruginosa (PA) on host skin lipids to form biofilm with pathological consequences. BACKGROUND PA biofilm causes wound chronicity. Both CDC as well as NIH recognizes biofilm infection as a threat leading to wound chronicity. Chronic wounds on lower extremities often lead to surgical limb amputation. METHODS An established preclinical porcine chronic wound biofilm model, infected with PA or Pseudomonas aeruginosa ceramidase mutant (PA ∆Cer ), was used. RESULTS We observed that bacteria drew resource from host lipids to induce PA ceramidase expression by three orders of magnitude. PA utilized product of host ceramide catabolism to augment transcription of PA ceramidase. Biofilm formation was more robust in PA compared to PA ∆Cer . Downstream products of such metabolism such as sphingosine and sphingosine-1-phosphate were both directly implicated in the induction of ceramidase and inhibition of peroxisome proliferator-activated receptor (PPAR)δ, respectively. PA biofilm, in a ceram-idastin-sensitive manner, also silenced PPARδ via induction of miR-106b. Low PPARδ limited ABCA12 expression resulting in disruption of skin lipid homeostasis. Barrier function of the wound-site was thus compromised. CONCLUSIONS This work demonstrates that microbial pathogens must co-opt host skin lipids to unleash biofilm pathogenicity. Anti-biofilm strategies must not necessarily always target the microbe and targeting host lipids at risk of infection could be productive. This work may be viewed as a first step, laying fundamental mechanistic groundwork, toward a paradigm change in biofilm management.
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Williams K, Szwalbe AJ, de Mattos-Shipley KMJ, Bailey AM, Cox RJ, Willis CL. Maleidride biosynthesis - construction of dimeric anhydrides - more than just heads or tails. Nat Prod Rep 2023; 40:128-157. [PMID: 36129067 PMCID: PMC9890510 DOI: 10.1039/d2np00041e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Covering: up to early 2022Maleidrides are a family of polyketide-based dimeric natural products isolated from fungi. Many maleidrides possess significant bioactivities, making them attractive pharmaceutical or agrochemical lead compounds. Their unusual biosynthetic pathways have fascinated scientists for decades, with recent advances in our bioinformatic and enzymatic understanding providing further insights into their construction. However, many intriguing questions remain, including exactly how the enzymatic dimerisation, which creates the diverse core structure of the maleidrides, is controlled. This review will explore the literature from the initial isolation of maleidride compounds in the 1930s, through the first full structural elucidation in the 1960s, to the most recent in vivo, in vitro, and in silico analyses.
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Affiliation(s)
- Katherine Williams
- School of Biological Sciences, Life Sciences Building, University of Bristol, 24 Tyndall Ave, Bristol BS8 1TQ, UK.
| | | | | | - Andy M. Bailey
- School of Biological Sciences, Life Sciences Building, University of Bristol24 Tyndall AveBristol BS8 1TQUK
| | - Russell J. Cox
- Institute for Organic Chemistry and BMWZ, Leibniz University of HannoverSchneiderberg 3830167HannoverGermany
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Williams K, de Mattos-Shipley KMJ, Willis CL, Bailey AM. In silico analyses of maleidride biosynthetic gene clusters. Fungal Biol Biotechnol 2022; 9:2. [PMID: 35177129 PMCID: PMC8851701 DOI: 10.1186/s40694-022-00132-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/23/2022] [Indexed: 01/09/2023] Open
Abstract
Maleidrides are a family of structurally related fungal natural products, many of which possess diverse, potent bioactivities. Previous identification of several maleidride biosynthetic gene clusters, and subsequent experimental work, has determined the 'core' set of genes required to construct the characteristic medium-sized alicyclic ring with maleic anhydride moieties. Through genome mining, this work has used these core genes to discover ten entirely novel putative maleidride biosynthetic gene clusters, amongst both publicly available genomes, and encoded within the genome of the previously un-sequenced epiheveadride producer Wicklowia aquatica CBS 125634. We have undertaken phylogenetic analyses and comparative bioinformatics on all known and putative maleidride biosynthetic gene clusters to gain further insights regarding these unique biosynthetic pathways.
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Affiliation(s)
- Katherine Williams
- grid.5337.20000 0004 1936 7603School of Biological Sciences, Life Sciences Building, University of Bristol, 24 Tyndall Ave, Bristol, BS8 1TQ UK
| | - Kate M. J. de Mattos-Shipley
- grid.5337.20000 0004 1936 7603School of Biological Sciences, Life Sciences Building, University of Bristol, 24 Tyndall Ave, Bristol, BS8 1TQ UK
| | - Christine L. Willis
- grid.5337.20000 0004 1936 7603School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS UK
| | - Andrew M. Bailey
- grid.5337.20000 0004 1936 7603School of Biological Sciences, Life Sciences Building, University of Bristol, 24 Tyndall Ave, Bristol, BS8 1TQ UK
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Vethakanraj HS, Chandrasekaran N, Sekar AK. Acid ceramidase, a double-edged sword in cancer aggression: A minireview. Curr Cancer Drug Targets 2020; 21:CCDT-EPUB-112652. [PMID: 33357194 DOI: 10.2174/1568009620666201223154621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/18/2020] [Accepted: 10/30/2020] [Indexed: 11/22/2022]
Abstract
Acid ceramidase (AC), the key enzyme of the ceramide metabolic pathway hydrolyzes pro-apoptotic ceramide to sphingosine, which by the action of sphingosine-1-kinase is metabolized to mitogenic sphingosine-1-phosphate. The intracellular level of AC determines ceramide/sphingosine-1-phosphate rheostat which in turn decides the cell fate. The upregulated AC expression during cancerous condition acts as a "double-edged sword" by converting pro-apoptotic ceramide to anti-apoptotic sphingosine-1-phosphate, wherein on one end, the level of ceramide is decreased and on the other end, the level of sphingosine-1-phosphate is increased, thus altogether aggravating the cancer progression. In addition, cancer cells with upregulated AC expression exhibited increased cell proliferation, metastasis, chemoresistance, radioresistance and numerous strategies were developed in the past to effectively target the enzyme. Gene silencing and pharmacological inhibition of AC sensitized the resistant cells to chemo/radiotherapy thereby promoting cell death. The core objective of this review is to explore AC mediated tumour progression and the potential role of AC inhibitors in various cancer cell lines/models.
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Bai J, Yan D, Zhang T, Guo Y, Liu Y, Zou Y, Tang M, Liu B, Wu Q, Yu S, Tang Y, Hu Y. A Cascade of Redox Reactions Generates Complexity in the Biosynthesis of the Protein Phosphatase-2 Inhibitor Rubratoxin A. Angew Chem Int Ed Engl 2017; 56:4782-4786. [DOI: 10.1002/anie.201701547] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Jian Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Daojiang Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Tao Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yongzhi Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yunbao Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yi Zou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Mancheng Tang
- Department of Chemical and Biomolecular Engineering; Department of Chemistry and Biochemistry; University of California; Los Angeles CA 90095 USA
| | - Bingyu Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Qiong Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Shishan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yi Tang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
- Department of Chemical and Biomolecular Engineering; Department of Chemistry and Biochemistry; University of California; Los Angeles CA 90095 USA
| | - Youcai Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
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Bai J, Yan D, Zhang T, Guo Y, Liu Y, Zou Y, Tang M, Liu B, Wu Q, Yu S, Tang Y, Hu Y. A Cascade of Redox Reactions Generates Complexity in the Biosynthesis of the Protein Phosphatase-2 Inhibitor Rubratoxin A. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jian Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Daojiang Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Tao Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yongzhi Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yunbao Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yi Zou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Mancheng Tang
- Department of Chemical and Biomolecular Engineering; Department of Chemistry and Biochemistry; University of California; Los Angeles CA 90095 USA
| | - Bingyu Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Qiong Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Shishan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
| | - Yi Tang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
- Department of Chemical and Biomolecular Engineering; Department of Chemistry and Biochemistry; University of California; Los Angeles CA 90095 USA
| | - Youcai Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Materia Medica; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100050 China
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Abstract
To date approximately 100 000 fungal species are known although far more than one million are expected. The variety of species and the diversity of their habitats, some of them less exploited, allow the conclusion that fungi continue to be a rich source of new metabolites. Besides the conventional fungal isolates, an increasing interest in endophytic and in marine-derived fungi has been noticed. In addition new screening strategies based on innovative chemical, biological, and genetic approaches have led to novel fungal metabolites in recent years. The present review focuses on new fungal natural products published from 2009 to 2013 highlighting the originality of the structures and their biological potential. Furthermore synthetic products based on fungal metabolites as well as new developments in the uses or the biological activity of known compounds or new derivatives are discussed.
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Affiliation(s)
- Anja Schueffler
- Institut für Biotechnologie und Wirkstoff-Forschung (Institute of Biotechnology and Drug Research), Erwin-Schroedinger-Str. 56, 67663 Kaiserslautern, Germany.
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Liu X, Zhang QH, Yi GH. Regulation of metabolism and transport of sphingosine-1-phosphate in mammalian cells. Mol Cell Biochem 2011; 363:21-33. [DOI: 10.1007/s11010-011-1154-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 11/11/2011] [Indexed: 02/04/2023]
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Inoue H, Someno T, Kawada M, Ikeda D. Citric acid inhibits a bacterial ceramidase and alleviates atopic dermatitis in an animal model. J Antibiot (Tokyo) 2010; 63:611-3. [PMID: 20648022 DOI: 10.1038/ja.2010.91] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hiroyuki Inoue
- Institute of Microbial Chemistry, Numazu, Microbial Chemistry Research Foundation, Miyamoto, Numazu-shi, Shizuoka, Japan
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Wada SI, Usami I, Umezawa Y, Inoue H, Ohba SI, Someno T, Kawada M, Ikeda D. Rubratoxin A specifically and potently inhibits protein phosphatase 2A and suppresses cancer metastasis. Cancer Sci 2010; 101:743-50. [PMID: 20028386 PMCID: PMC11158319 DOI: 10.1111/j.1349-7006.2009.01438.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Although cytostatin analog protein phosphatase 2A (PP2A)-specific inhibitors are promising candidates of a new type of anticancer drug, their development has been hindered because of their liability. To find new classes of PP2A-specific inhibitors, we conducted a screening with microbial metabolites and found that rubratoxin A, a classical mycotoxin, is a highly specific and potent inhibitor of the enzyme. While rubratoxin A inhibits PP2A at Ki = 28.7 nm, it hardly inhibited any other phosphatases examined. Rubratoxin B, a close analog, also specifically but weakly inhibits PP2A at Ki = 3.1 microM. The inhibition of intracellular PP2A in cultured cells is obviously observed with 20 microM rubratoxin A treatment for 3 h, inducing the overphosphorylation in PP2A substrate proteins. Although rubratoxins and cytostatin differ in the apparent structures, these compounds share similarities in the structures in detail and PP2A-binding manners. Rubratoxin A showed higher suppression of tumor metastasis and reduction of the primary tumor volume than cytostatin in mouse experiments. As a successor of cytostatin analogs, rubratoxin A should be a good compound leading to the development of antitumor drugs targeting PP2A.
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Affiliation(s)
- Shun-ichi Wada
- Numazu Bio-Medical Research Institute, Microbial Chemistry Research Foundation, Shizuoka
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Gangoiti P, Camacho L, Arana L, Ouro A, Granado MH, Brizuela L, Casas J, Fabriás G, Abad JL, Delgado A, Gómez-Muñoz A. Control of metabolism and signaling of simple bioactive sphingolipids: Implications in disease. Prog Lipid Res 2010; 49:316-34. [PMID: 20193711 DOI: 10.1016/j.plipres.2010.02.004] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 02/18/2010] [Accepted: 02/22/2010] [Indexed: 01/05/2023]
Abstract
Simple bioactive sphingolipids include ceramide, sphingosine and their phosphorylated forms sphingosine 1-phosphate and ceramide 1-phosphate. These molecules are crucial regulators of cell functions. In particular, they play important roles in the regulation of angiogenesis, apoptosis, cell proliferation, differentiation, migration, and inflammation. Decoding the mechanisms by which these cellular functions are regulated requires detailed understanding of the signaling pathways that are implicated in these processes. Most importantly, the development of inhibitors of the enzymes involved in their metabolism may be crucial for establishing new therapeutic strategies for treatment of disease.
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Affiliation(s)
- Patricia Gangoiti
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain
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